This book is just incredible! I LOVED Gabriel and Mia. They have to be two of the best MC I've read in a while. Each have huge hearts and are super caring about the people they love, but they are so very different, and there is an age gap. Gabriel is the crazy smart with numbers, strong, dependable, always taking care of everyone, but feels damaged. Mia is science smart, loves seaturtles (need i go on!!!), fun and lovable, quickly reads people and is able to put them at ease. She has them laughing in no time at her animated talking! Add in a great cast of supporting characters, 2 different pacts between brothers, conquering fears, undercover covert ops, love, family, laughing, frustration, crying, all the feels! That's this book in a nutshell! Buy it! Read it! It is so good!